On 20 June 2013 16:56, Jeff Roberson <jrober...@jroberson.net> wrote:
> Just to add some more information; On my machine with 16GB of ram the > handful of recent UMA commits save about 20MB of kmem on boot. There are > 30% fewer buckets allocated. And all of the malloc zones have similar > amounts of cached space. Actually the page size malloc bucket is taking up > much less space. > > I don't know if the problem is unique to arm but I have tested x86 limited > to 512MB of ram without trouble. I will need the stats I mentioned before > to understand what has happened. Have you tried lower than 512MB? Like, 128MB? I have a 128MB -HEAD VM on i386 and it's working fine but I haven't done much digging to see how _well_ its working. I'm about to try a 64MB and 96MB VM. I'd like to go all the way down to 32MB (obviously with a cut down kernel, as GENERIC is pretty damned big!) and ensure that i386 isn't behaving poorly. There are still plenty of ARM/MIPS embedded boards that ship with 32MB (and less) RAM. I'm going to try stable/9 on 128MB of RAM soon. I know that 9.1-REL i386 + 128MB RAM results in a crash. Hopefully this stuff is better on stable/9. Thanks, Adrian _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
